Self-heating sad-iron.



F. R. SHAFPER.

SELF HEATING SAD IRON.

APPLIOATION FILED 11111.26, 1907.

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, SELF HEATNG SAD IRON.

APPLICATION FILED JAN.26, 19o?.

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@I @QM/MW@ www A TTOHNEY Y., ASSIGNOR TO THE NEW YORK FLATIRON NEW YORK.

SELF-HEATING SAD-IRON.

Application led January 26, 1907.

To all whom it may concern:

Be it known that I, FREDERICK R. SHAF- FER, a citizen of the United States, residing at New York city, New York, have invented certain new and useful Improvements in Self-Heating Sad-Irons, of which the 'following is a clear, full, and exact description.

This invention relates to that class of sad irons which carry a reservoir of liquid fuel which is injected into the iron body and there burned.

The object of the invention is primarily to provide a sad iron which will use alcohol for fuel, though some portions of my invenior are applicable to irons using any liquid A further object is to provide means for properly start-ing the burning of the fuel when the iron is in vertical position, after which it may be used in horizontal position, thus keeping the handle cool or uncharred if of wood, while getting the proper heat for the reservoir during the starting operation.

Further objects are to provide a safe, secure and readily filled inlet or charging valve which will not blow out, and other elements of design and arrangement of parts tending to produce a cheap, serviceable and reliable self-heating sad iron.

In carrying ont my invention I make use of the direct radiated and conducted heat to keep the full reservoir under pressure in distinction from irons heretofore made with heat insulating diaphragms or plates between the iron and reservoir or tank. I also depart from prior devices in bringing the fuel through a mixing chamber so that it will vaporize not only during use but readily in starting.` I arrange auxiliary heating means for heating the nozzle and connecting pipe between it and the tank, and I preferably locate it in a stand which will accommodate the iron when in vertical position. T o create pressure in the reservoir at the time of heating nozzle and pipe, I bring them under the influence of auxiliary heat, preferably by a burner located at the end of the reservoir and carried by the iron. To aid in filling I surround the inlet with an outstanding wall to make a funnel unnecessary. To properly seal the reservoir I locate a disk within the same, carried by a plug which closes the end of the reservoir, pro- Speccaton of Letters Patent.

Patented June 14, 1910.

Sera1 No. 354,236.

vided with an opening of less size than the disk; a threaded thumb nut preferably being provided to hold the disk against its seat.

My invention will be more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a central sectional side elevation of my improved iron; Fig. 2 is a side elevation of the same in starting position, with part broken away; Fig. 3 is a rear elevation of the iron; Fig. 4 is a front elevation thereof; Fig. 5 is a section on line 5-5 Fig. 2; and Fig. 6 is a plan of the igniting and iron rest stand.

In the drawings, the body part 1 is of the usual iron shape with a hollow center and upstanding walls. The side walls 2 are perforated, here shown as circular perforations 3 for the entrance of air, though they may be of varied shape. The rear wall 4 is provided with a central opening 5 which may support the central mixing chamber 6, which may be forced therein.

The chamber 6 is a long tubular chamber closed at its inner end and held just above the iron body. It is perforated with numerous holes 7. A metal cover plate 8 is provided which supports in end standards 9 and 10 the cylindrical reservoir ply and vaporizing pipe 12 passes through the cover plate 8 and into the reservoir 11, is bent and passes centrally through the mixing chamber, to near one end where it is again bent and passing upwardly, enters a valve casing 13 from which there projects a curved nozzle 14 which enters the mixing chamber, as shown in Fig. 1. A needle valve 15 serves to throttle the fuel as it passes from the pipe 12 to the curved nozzle 14. A vertical stem 16 extends above the needle valve and is provided with a handle 17 located out of the way of both heat and the work being ironed.

rI`he standard 9 may have a circular yoke 1S and be attached to the iron as shown in Fig. 4, while its upper end is secured to one end of the handle 19 of the iron. The standard 10, may be as shown in Fig. 5 and have a central yoke 20 composed of a shallow pan filled with asbestos or the like and fastened to the iron and also to the handle, as shown.

The reservoir or tank may be cylindrical and be carried by the yokes 18 and 20. It is preferably a cylinder closed at one end 11. A fuel supand provided with a special plug 21 threaded into its other end. The plug 21 has an outstanding wall 22 surrounding a central opening 23, while the inner side of the plug has two screws 24: passing freely through holes in a disk valve 25 having a threaded stud 26 passing through the opening. A leaden or like washer 27 maybe interposed between the disk and valve body. A thumb nut 28 on the stud 26 serves to hold the disk in place, while pressure serves to insure its retention in place.

The stand 29 has a pocket 30 filled with asbestos or the like and supporting walls 31 with ledges 32 adapted to lit the iron when in vertical position, as illustrated in Fig. 2.

To lill the iron the thumb-nut is removed and alcohol poured into the funnel like recess formed by the outstanding wall of the plug, and then the thumb-nut replaced.

To light the iron, a little alcohol is placed in the pocket of the stand and the iron placed in vertical position in the stand with a little alcohol in the pan surrounding the reservoir. Both pocket and pan alcohols are ignited, the nozzle is heated and so is the conveying and vaporizing pipe by the ame from the pocket. The chamber or reservoir is heated from the pan, its contents expand, alcohol is first forced out of the nozzle, dropping into the pocket and burning, then vapor issues at the nozzle, drawing in air or drawing up the flame from the pocket through the temporary chimney formed of the vertical mixing chamber and further heating the pipe until the alcohol vapor ignites, when the iron is ready for use. The auxiliary heating' devices-may then be extinguished. The wooden handle and the handle from the needle valve, it will be noticed, are well to the side of all burning alcohol and thus are maintained cool at all times.

It will be noted that the part 20 constitutes a heating device which is adapted to create pressure within the cylinder 11. That the stand 31 constitutes an auxiliary heat-ing burner so placed that the flames therefrom will surround the nozzle and its connections to heat the same, and keep the fuel therein always vaporized, and that the ame from the auxiliary burner will pass vertically upward when the iron is stood on its end upon the stand 31.

I claim as my invention:

1. A sad iron having a hollow body part, a fuel chamber thereon, said chamber being located within the zone of radiated heat from said iron body, and above and longitudinal to the iron body, whereby pressure suflicient to feed the fuel will be generated in said chamber, a heating device carried by the iron at the end of said body part, a nozzle and connections therefor to the fuel chamber, in combination with an auxiliary burner independent of said heating device for heating said nozzle and connections.

2. A sad iron having a hollow body part, a fuel chamber thereon, said chamber being located within the zone of radiated heat from said iron body, and above and longitudinal to the iron body, whereby pressure suiicient to feed the fuel will be generated in said chamber, a heating device for the fuel chamber composed of a fuel pan at one end of said fuel chamber, a nozzle and connections therefor to the fuel chamber, in combination with an auxiliary burner, independent of said iron, adapted to heat said nozzle and connections, and upon which the iron is adapted to be stood on its end.

3. A sad iron having a body part, a superposed fuel chamber and a heating device comprising an open cup for preliminarily heating the fuel chamber when in a vertical position, carried by and substantially surrounding the fuel chamber at one end.

4. A sad iron having a body part, a mixing chamber, a feed pipe, a superposed fuel chamber and a heating device adapted to heat the fuel when the iron is in a vertical position, in combination with an auxiliary burner in Vertical line with said mixing chamber and feed pipe, whereby the heat from said burner will heat said pipe to vaporize the fuel, said heating device adapted to create pressure in the fuel chamber.

5. A sad iron having a body part, a mixing chamber, a feed pipe, a superposed fuel chamber and a heating device adapted to preliminarily heat the fuel when the iron is in a vertical position, in combination with an auxiliary burner in vertical line with said mixing chamber and feed pipe whereby the heat from said burner will heat said pipe to vaporize the fuel, said heating device adapted to create pressure in the fuel chamber, said auxiliary burner comprising a detachable stand adjacent to said fuel chamber.

6. A sad iron having a body part, nozzle and superposed fuel chamber, and a heating device for starting said iron when in vertical position, said device comprising a heating burner pan lfixed to and adjacent one end of the fuel chamber, in combination with a second burner pan adjacent to said nozzle, but independent and separable from the iron.

7. A sad iron having a body part and a nozzle, a superposed fuel chamber, and a heating device comprising a substantially circular pan at one end of said fuel chamber, and carried thereby, adapted to contain fuel when the iron is in vertical position.

Signed at New York city this 24th day of January 1907.

FREDERICK R. SHAFFER. l/Vitnesses:

F. WARREN WRIGHT, BEATRICE MIRRrs. 

